I think the flight track image that was posted for AF1 is fake.
I don't think there was any diversion at all.
However they did pass close to the spot where JFK Jr.'s plane went down
And Q did post about DECLAS with L in the killbox.
AF1 turned on its ADS just past the spot where JFK Jr's plane went down. Check it here
https://flight-data.adsbexchange.com/map?icao=ADFDF9&date=2018-11-12